Roo97,
Imagine spending and sharing all of your time, money, efforts, dreams, desires and memories with someone. Imagine picking a friend that you choose to be with all of the time, 24 hours a day, 7 days a week, 365 days a year, then add complications that come along with adult lives, financial, physical, emotional. Then add to it the stress of having kids, are you raising them properly, are they the best versions that they can be. Couples never agree 100% of the time, many argue or have conflicts that arent addressed. The responsibilities and repercussions can be daunting to say the least and amongst everything you have to treat your spouse with the utmost respect and love. Every couple argues sometimes, my wife and I have had some really good and long ones over really silly stuff. Dont worry about your parents, you cant do a thing, just be a good kid and love them unconditionally as they love you.
Peace,
Dave